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Jack Mercer - Wikipedia
Jack Mercer - IMDb
Jack Mercer - Biography - IMDb
Jack Mercer (1910-1984) - Find a Grave Memorial
Jack Mercer (Popeye) - To Tell The Truth 1974 - YouTube
Michael Sporn Remembered: His Interview With Jack Mercer
Jack Mercer - Popeye the Sailorpedia
Jack Mercer - The Movie Database (TMDB)
Jack Mercer Interview - Voice Actor of Popeye - YouTube
He Was the Voice of Popeye -- The Grave of Jack Mercer.